Astral type window structure



Sept. 9, 1952 G. POGGI ASTRAL TYPE wmnow STRUCTURE Filed June 9, 1948 G20 vzzzznz' P0 Patented Sept. 9, 1952 ASTRAL TYPE WINDOW STRUCTURE Giovanni Poggi, Bologna, Italy Application June 9, 1948, Serial No. 31,864

In Italy June 10, 1947 2 class.

This invention relates to Windows with balanced pivoted and slidable sash pairs, including apair of sashes connected together by means of balance levers pivotally mounted on fixed centers and at the ends of which the sashes are pivoted, such sashes also being slidably mounted at one of their ends in slide guides fastened to or forming part of the window frame.

Windows of this type are known but usually both the guide pins or rollers attached to the win- This invention constitutes an improvement over these known windows, in that it permits opening the sashes by rotating the balance lever through substantially 180, viz. through an ample angle beyond the horizontal position, while uiding the sashes in coplanar guides, which permit the sashes to lie in substantially the'same plane when in closed position, and which do not permit the projecting guiding parts to be exposed to the weather.

. This improvement is attained, according to the invention, by constructing the window frame upright members of channel iron with the wings or legs of the channel facing toward the sashes, one leg being of less width for more than half of its length than the adjacent leg of the same channel upright, thus permitting rotation of the balance levers through angles substantially greater than 90 and approaching 180, the thickness of the window sashes being substantially equal to the distance between the legs of the channelled uprights. Furthermore, in order to mask or conceal all parts lying inside of such channelled uprights, the balance levers carry flaps which, in closed po sition of the sashes, fill the gaps between the ends of the wider channel legs and the adjacent portion of the sash frame lying substantially in the same plane as the said channel leg.

, The invention aims further to provide a simple and improved means for locking Window sashes of this type together in closed position.

Other objects and advantages of the invention will appear from the following description of a preferred embodiment which will be described hereinafter with reference to the attached drawings in which:

Figures 1 to 6 show diagrammatically a win- 2 dow according to the invention in rfullyclosed position (Fig. 1) and in fully opened position (Fig. 6) by. passing through four intermediate positions (Figures 2 to 5). I 1* Figure 7 is a perspective and sectional view ofa part of a window frame upright having a' sash.- balance lever attached thereto.

Figure 8 is a perspective and sectional view of a pair of window sashes in closed position.

Figures 9 and 9a are perspective and sectional views of a pair of window sashes in closed position; and show a preferred arrangement-of a closing catch and handle.

Figure 10 is a diagrammatic perspective view of a partially opened Window. i

With reference to Figures 1 to 6, it is seen that window sashes A and A, which in the closedposition of Figure 1 lie in the same plane, are con nected together by means of balancelevers L fulcrumed at O. Sashes A and A are slidably Enided at their framewards directed or side ends in guides R, while at a point of the sash remote from the guided end, the ends of levers L are hinged. The length of levers L is usually equal to twice the distance between the pivot point on a sash to the non-guided end of the sash. I

It is apparent that by this arrangement; when the sashes are free to slide and to rotate, it-is suificient to push or to pull one of them to promote rotation of the levers L about their fulcrums, and to swing thesashes A and A about their hinge points to levers L with a corresponding sliding movement of the guided sash ends, so as to leave a corresponding upper and lower section of the window opening free. As is apparent from Figure 6, when the window is in fully opened position, sashes A and A are superposed and the free opening of the window amounts to about 50% of the total opening. In the intermediate positions, and particularly in the positions shown in Figures 2 and 3, good indirect ventilation may be obtained.

In order to permit this, the window frame uprights R, Figure '7, constituting the guides for the guiding members projecting laterally from the ends of the Window sashes are made of I, or double-channel, or double-U iron, one leg W of which is cut for more than half of its total length so as to give to this leg 2. smaller width than the immediately opposite leg W, and so that at the intermediate or central part of the frame uprights, where the balance lever L is fulcrumed at 0, both legs have substantially the same shorter width, thus providing two openings or gaps V and V. These openings V or V have dimen- 3 sions which correspond to the dimensions of flaps T and T provided on balance lever L so that, when said lever is in line with the uprights, it is hidden between the upright legs, and the gaps V and V are closed or occupied by flaps T and T, as shown in Figure 8.

Figures 9 and 9a show a simple cam catch N which, by being turned in fully projecting position N, as by turning handle M to position M, comes behind a projecting ledge of window sash frame A and locks both sashes in fully closed position,

Figure 10 is a perspective view of the window shown in section in Figure 2 or 3.

Of course the windows described herein may undergo numerous changes, though remaining within the limits of the basic principle set out above and as will be claimed hereinafter. Thus in some cases it will be convenient to cause the sashes to slightly overlap, and in this case it will not be possible or convenient to cause same'to lie in the same plane when in closed position.

Furthermore, it is to be understood that the term window shall include any kind of aperture like a window, and the term sashes shall include any kind of shutter, either provided with glass panes or not, provided it functions like a sash.

Moreover, as is apparent to the skilled in the art, the openin and closing of the window may be effected by any appropriate means, and even from a remote distance.

Having thus described my invention, I claim:

1. A window comprising a window frame having a pair of channeled uprights between which window sashes are disposed and each of which have legs extending parallel to the window sashes when said sashes are in closed position, said uprights consisting in an upper part which, throughout its length, has an inside leg of greater width than attached at both ends of each balance lever at a distance from their ends corresponding to about one-half of the length of said balance lever, and

slidable guiding means projecting from the upper sides of the upper sash and from the lower sides of the lower sash into the space between the legs of the upper and lower parts of the uprights.

2. A window comprising a window frame having a pair of channeled uprights between which window sashes are disposed and each of which have legs extending parallel to the window sashes when said sashes are in closed position, said uprights consisting in an upper part which, throughout its length, has an inside leg of greater width than the opposite outside leg and a lower part which, throughout its length, has an outside leg of greater width than the opposite inside leg and an intermediate part which has legs substantially of the width of the shorter legs of said upper and lower parts of the upright, balance levers respectively pivoted at the center of said intermediate part of the uprights, said sashes being pivotally attached at both ends of each balance lever at a distance from their ends corresponding to about one-half of the length of said balance lever, slidable guiding means projecting from the upper sides of the upper sash and from the lower sides of the lower sash into the space between the legs of the upper and lower parts of the uprights, and a pair of flaps on each of said balance levers, which flaps are longitudinally aligned with the wide legs of the upper and lower parts of the upright and adjacent the short legs of the intermediate part of said upright to fill respective gaps between the end of the wide leg and the adjacent portions of the sashes. when the sashes are in closed position. I

GIOVANNI POGGI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 15,146 Winslow July 5, 1921 FOREIGN PATENTS Number Country Date 277,861 Great Britain 1927 OTHER REFERENCES Booklet #2701, page 18, Austral Window Company, Catalogue No. 25, Austral Window Company, 101 Park Avenue, New York. 

